Hi !
Great plugin! The demo you provided works great and really is impressive!
I have some issues integrating it into my projects though, and I’m here to ask for your help.
(Edit: everything is working now)
So, I have installed the plugin and it was built successfully. I have created new collision channel “Tiles”. In my custom GameMode player controller have been set to NavGridExamplePC. Created NavGrid and I was able to generate tiles using TileGeneratorVolume. If I press play I see the white circle cursor apearing and disapearing on them as I move my mouse around. But when I place ExampleGridPawn and press play nothing is changed. The pawn doesn’t react in any way. It doesn’t even have SelectedHighlight turned on.
I’ve tried to do same steps in the demo project from you, and everything works. if I place just ExampleGridPawn in empty level (only with NavGrid, otherwise it crushes :)) it shows SelectedHighlight mesh when Play is on, so I can see it’s working.
Any ideas on how can I fix it?
Edit:
It seems like only version 2.2.2 have this problem. I’ve tried to rebuild it with 2.2.0 version from the demo and everything works fine. I should probably start a new issue on github. 
Edit again:
Disregard everything above!
It’s embarrasing. I’ve cloned master brunch directly. Tried release version 2.2.2 and it works without problem.
The only thing probably need adressing is a check on pawn if NavGrid exist. Right now it crashes whenever you forget to put NavGrid in scene 
Love the plugin, Good Luck!
Edit again and again: I see you have checks for NavGrid. But crashes do occur anyway. Does it get NULL somewhere else?